6bc9

Joint X-ray/neutron structure of human carbonic anhydrase II in complex with dorzolamide

Dmax: 63.1 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Carbonic anhydrase 2

Homo sapiens

UniProt P00918

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–260 Not recorded ZN ZINC ION × 1 ETS (4S-TRANS)-4-(ETHYLAMINO)-5,6-DIHYDRO-6-METHYL-4H-THIENO(2,3-B)THIOPYRAN-2-SULFONAMIDE-7,7-DIOXIDE × 1 Experimental method not declared X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;1.6 M sodium citrate, 50 mM TRIS pH 8.0 Resolution not provided

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

1239 other PDB entries and 1272 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CAH2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–260; UniProt 1–260

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 6bc9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6bc9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6bc9
Deposition date deposition_date2017-10-20
Structure title titleJoint X-ray/neutron structure of human carbonic anhydrase II in complex with dorzolamide
Keywords keywordsprotonation state, drug binding, hydrogen bonding, LYASE, lyase-lyase inhibitor complex; lyase/lyase inhibitor

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier19.75
Radius of gyration Rg (electron density) rg_electron17.50
Forward intensity I(0) i06515130.00
Molecular weight molecular_weight35765.0 kDa
Excluded volume excluded_volume50370 ų
Envelope volume envelope_volume49150 ų
Hydration-shell volume shell_volume21655 ų
Envelope diameter envelope_diameter63.8
Shell Rg shell_rg25.47
Envelope Rg envelope_rg18.53
Shape Rg shape_rg17.58
Total Rg total_rg18.95
Total atoms total_atoms4461
Residues n_residues257
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax63.1
Rg (real space) rg_real19.58
Rg uncertainty (real space) rg_real_error0.41
I(0) (real space) i0_real6.5150e+06
I(0) uncertainty (real space) i0_real_error8.0640e+04
Rg (reciprocal space) rg_reciprocal19.60
I(0) (reciprocal space) i0_reciprocal6515000.0000
Solution quality estimate total_estimate0.8028
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary24.9
Skewness Skewness skewness0.025
Kurtosis Kurtosis kurtosis-0.420
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1160000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.815; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd6bc9a_
Class classb — All beta proteins
Fold Fold foldb.74 — Carbonic anhydrase
Superfamily Superfamily superfamilyb.74.1 — Carbonic anhydrase
Family Family familyb.74.1.1 — Carbonic anhydrase

CATH v4.4 (1 domains)

Domain ID domain_id6bc9A00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology200 — Carbonic Anhydrase II
Homologous superfamily homologous superfamily10 — Alpha carbonic anhydrase

8. Citations (2)

9. Files and Curves (10)